
Phased
Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.
KiCad boards from 4 GitHub repositories tagged “marine”, the most starred first; open any of them in PCBKit.

Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.

bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.

behringer24/boathub
A BoatHub remote sailboat monitor based on ESP32 DevKit microcontroller hardware and KiCad board layout

Cadburies/SisuAssistant
Sailing yacht Sisu: Home Assistant + ESPHome Marine Board (alternator regulation, tanks) + MQTT kernel, Signal K/Grafana/InfluxDB on a NAS, and Sisu Nav chart & weather-routing cockpit.

Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.

Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.

Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.

Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.

bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.

bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.

bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.

bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.

bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.

bigbrainlabs/BoatOpenIO
Universal 16-channel analog marine gateway for boats with legacy VDO sensors. Connects analog instruments to MQTT and Signal K without sensor replacement. ESP32-based, open source, modular mini-board system.

Cadburies/SisuAssistant
Sailing yacht Sisu: Home Assistant + ESPHome Marine Board (alternator regulation, tanks) + MQTT kernel, Signal K/Grafana/InfluxDB on a NAS, and Sisu Nav chart & weather-routing cockpit.